---------------------------------------------------------------------------------------------------
      name:  <unnamed>
       log:  /volumes/ddisk/math/soviet/Table_2.log
  log type:  text
 opened on:  23 Mar 2014, 08:44:48

. use "/volumes/ddisk/math/ams/clean_ams_data_author_year.dta", replace;

. generate good=.;
(6282565 missing values generated)

. replace good=1 if year>=1970 & year<=1989;
(2433275 real changes made)

. egen n70=sum(good*papers), by(unique);

. drop if n70==0;
(675205 observations deleted)

. merge unique using "/volumes/ddisk/math/ams/international/soviet_universe.dta";
(note: you are using old merge syntax; see [D] merge for new syntax)
variable unique does not uniquely identify observations in the master data
degree_year was int now float

. drop _merge;

. keep if soviet==1;
(5243145 observations deleted)

. drop if emigre==1;
(31681 observations deleted)

. drop country;

. rename modal_country country;

. keep if year>=1982 & year<=2008;
(49365 observations deleted)

. sort unique;

. merge unique using /volumes/ddisk/math/soviet/shocks_and_instruments.dta;
(note: you are using old merge syntax; see [D] merge for new syntax)
variable unique does not uniquely identify observations in the master data

. drop _merge;

. drop if shock_idea_space==.;
(0 observations deleted)

. generate publish=(papers>0);

. summ publish papers ;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
     publish |    283169    .2871148    .4524164          0          1
      papers |    283169    .5506853    1.221365          0         29

. generate inter_shock1=post1992*shock_idea_space;

. generate inter_pexp1=post1992*shock_geographic_space;

. generate inter_paut1=post1992*shock_coauthor_space;
(76795 missing values generated)

. replace inter_paut1=0 if inter_paut1==.;
(76795 real changes made)

. areg publish inter_shock1 post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  30,  11172) =     496.22
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.3917
                                                  Adj R-squared   =     0.3666
                                                  Root MSE        =     0.3601

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
     publish |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
inter_shock1 |   .3931286   .0437769     8.98   0.000     .3073181    .4789391
    post1992 |  -.0540104   .0075679    -7.14   0.000    -.0688449    -.039176
       exper |  -.0618007    .001246   -49.60   0.000    -.0642431   -.0593583
      exper2 |   .0038198   .0000953    40.09   0.000      .003633    .0040065
      exper3 |  -.0000945   2.85e-06   -33.16   0.000    -.0001001   -.0000889
      exper4 |   7.55e-07   2.78e-08    27.14   0.000     7.00e-07    8.09e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |   .0587425   .0077161     7.61   0.000     .0436176    .0738673
     dyear14 |   .1069658   .0074231    14.41   0.000     .0924153    .1215163
     dyear15 |   .1470094   .0071402    20.59   0.000     .1330133    .1610055
     dyear16 |   .1267787   .0067236    18.86   0.000     .1135992    .1399581
     dyear17 |   .1204797   .0064156    18.78   0.000      .107904    .1330554
     dyear18 |   .1042887   .0061509    16.96   0.000     .0922319    .1163455
     dyear19 |   .1185885   .0058195    20.38   0.000     .1071811    .1299958
     dyear20 |   .1162375   .0054845    21.19   0.000     .1054869     .126988
     dyear21 |   .0287041   .0049602     5.79   0.000     .0189813    .0384269
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0110254   .0043415    -2.54   0.011    -.0195355   -.0025152
     dyear25 |  -.0146383   .0042077    -3.48   0.001    -.0228862   -.0063904
     dyear26 |   .0003582    .004157     0.09   0.931    -.0077903    .0085066
     dyear27 |   .0022714    .004002     0.57   0.570    -.0055732     .010116
     dyear28 |   .0106752   .0039369     2.71   0.007     .0029581    .0183923
     dyear29 |    .003686   .0038258     0.96   0.335    -.0038133    .0111853
     dyear30 |   .0093439   .0037513     2.49   0.013     .0019907    .0166972
     dyear31 |   .0145004   .0036648     3.96   0.000     .0073168     .021684
     dyear32 |   .0053498   .0035553     1.50   0.132    -.0016192    .0123187
     dyear33 |   .0068954   .0034536     2.00   0.046     .0001257    .0136651
     dyear34 |   .0001377    .003368     0.04   0.967    -.0064643    .0067396
     dyear35 |    .002911   .0033462     0.87   0.384    -.0036482    .0094701
     dyear36 |   .0011373   .0033268     0.34   0.732    -.0053837    .0076584
     dyear37 |   .0031329   .0032427     0.97   0.334    -.0032235    .0094892
     dyear38 |  -.0011384   .0032659    -0.35   0.727    -.0075401    .0052633
     dyear39 |          0  (omitted)
       _cons |    .585415   .0071317    82.09   0.000     .5714356    .5993945
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. areg publish  inter_pexp1  post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  30,  11172) =     487.95
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.3917
                                                  Adj R-squared   =     0.3666
                                                  Root MSE        =     0.3601

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
     publish |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
 inter_pexp1 |   .1969201   .0229452     8.58   0.000     .1519434    .2418967
    post1992 |  -.0243415   .0055463    -4.39   0.000    -.0352133   -.0134697
       exper |  -.0619265   .0012473   -49.65   0.000    -.0643713   -.0594816
      exper2 |   .0038354   .0000953    40.23   0.000     .0036486    .0040223
      exper3 |   -.000095   2.85e-06   -33.31   0.000    -.0001006   -.0000894
      exper4 |   7.58e-07   2.78e-08    27.25   0.000     7.04e-07    8.13e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |    .058743   .0077142     7.61   0.000     .0436219    .0738642
     dyear14 |   .1070537   .0074243    14.42   0.000     .0925007    .1216067
     dyear15 |   .1470496   .0071392    20.60   0.000     .1330555    .1610437
     dyear16 |   .1267075   .0067214    18.85   0.000     .1135323    .1398826
     dyear17 |   .1204077   .0064142    18.77   0.000     .1078346    .1329807
     dyear18 |   .1042799   .0061504    16.96   0.000      .092224    .1163357
     dyear19 |   .1186068   .0058196    20.38   0.000     .1071995    .1300142
     dyear20 |   .1162544   .0054843    21.20   0.000     .1055042    .1270046
     dyear21 |   .0287162   .0049605     5.79   0.000     .0189927    .0384397
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0110471   .0043412    -2.54   0.011    -.0195567   -.0025376
     dyear25 |  -.0146843   .0042074    -3.49   0.000    -.0229316    -.006437
     dyear26 |   .0002868   .0041563     0.07   0.945    -.0078604     .008434
     dyear27 |    .002175   .0040013     0.54   0.587    -.0056682    .0100182
     dyear28 |   .0105553    .003936     2.68   0.007     .0028401    .0182705
     dyear29 |   .0035454   .0038252     0.93   0.354    -.0039528    .0110435
     dyear30 |   .0091864   .0037507     2.45   0.014     .0018343    .0165385
     dyear31 |   .0143309   .0036642     3.91   0.000     .0071483    .0215134
     dyear32 |   .0051852   .0035548     1.46   0.145    -.0017828    .0121532
     dyear33 |   .0067352   .0034527     1.95   0.051    -.0000327    .0135031
     dyear34 |  -.0000128   .0033669    -0.00   0.997    -.0066125    .0065869
     dyear35 |    .002773   .0033456     0.83   0.407     -.003785    .0093309
     dyear36 |   .0010229   .0033263     0.31   0.758    -.0054973    .0075431
     dyear37 |   .0030443   .0032429     0.94   0.348    -.0033123    .0094009
     dyear38 |  -.0011849   .0032658    -0.36   0.717    -.0075865    .0052166
     dyear39 |          0  (omitted)
       _cons |   .5853585   .0071349    82.04   0.000     .5713729    .5993441
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. areg publish inter_paut1 post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  30,  11172) =     480.96
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.3912
                                                  Adj R-squared   =     0.3661
                                                  Root MSE        =     0.3602

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
     publish |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
 inter_paut1 |   .0189571   .0115812     1.64   0.102    -.0037442    .0416583
    post1992 |  -.0036199   .0049575    -0.73   0.465    -.0133374    .0060976
       exper |  -.0616677   .0012499   -49.34   0.000    -.0641177   -.0592177
      exper2 |   .0038142   .0000955    39.94   0.000      .003627    .0040013
      exper3 |  -.0000944   2.86e-06   -33.06   0.000       -.0001   -.0000888
      exper4 |   7.54e-07   2.79e-08    27.06   0.000     6.99e-07    8.08e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |   .0591234   .0077177     7.66   0.000     .0439952    .0742515
     dyear14 |   .1074641   .0074273    14.47   0.000     .0929052    .1220229
     dyear15 |   .1474289   .0071426    20.64   0.000      .133428    .1614297
     dyear16 |   .1271219    .006725    18.90   0.000     .1139397     .140304
     dyear17 |   .1207836   .0064159    18.83   0.000     .1082074    .1333599
     dyear18 |    .104565   .0061519    17.00   0.000     .0925062    .1166238
     dyear19 |   .1187608   .0058197    20.41   0.000     .1073531    .1301685
     dyear20 |   .1163309   .0054847    21.21   0.000     .1055799    .1270819
     dyear21 |   .0287477   .0049603     5.80   0.000     .0190247    .0384707
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0110574   .0043413    -2.55   0.011    -.0195671   -.0025478
     dyear25 |  -.0146971   .0042074    -3.49   0.000    -.0229443   -.0064498
     dyear26 |   .0002776   .0041564     0.07   0.947    -.0078696    .0084248
     dyear27 |   .0021739   .0040014     0.54   0.587    -.0056694    .0100173
     dyear28 |   .0105653   .0039363     2.68   0.007     .0028495    .0182811
     dyear29 |    .003568   .0038255     0.93   0.351    -.0039307    .0110667
     dyear30 |    .009222   .0037509     2.46   0.014     .0018697    .0165744
     dyear31 |   .0143785   .0036643     3.92   0.000     .0071959    .0215611
     dyear32 |   .0052371   .0035549     1.47   0.141     -.001731    .0122053
     dyear33 |   .0067914   .0034532     1.97   0.049     .0000226    .0135602
     dyear34 |   .0000449   .0033675     0.01   0.989     -.006556    .0066458
     dyear35 |   .0028307   .0033459     0.85   0.398    -.0037278    .0093892
     dyear36 |    .001073   .0033267     0.32   0.747    -.0054478    .0075939
     dyear37 |   .0030857   .0032427     0.95   0.341    -.0032706     .009442
     dyear38 |  -.0011636   .0032658    -0.36   0.722    -.0075651    .0052379
     dyear39 |          0  (omitted)
       _cons |   .5845888   .0071491    81.77   0.000     .5705753    .5986023
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. areg publish inter_shock1 inter_pexp1 inter_paut1 post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  32,  11172) =     470.43
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.3920
                                                  Adj R-squared   =     0.3670
                                                  Root MSE        =     0.3599

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
     publish |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
inter_shock1 |   .3486275   .0444332     7.85   0.000     .2615307    .4357244
 inter_pexp1 |   .1755834   .0235828     7.45   0.000     .1293569    .2218099
 inter_paut1 |  -.0128127   .0119005    -1.08   0.282    -.0361397    .0105143
    post1992 |  -.0669241   .0077995    -8.58   0.000    -.0822125   -.0516356
       exper |   -.062012   .0012446   -49.82   0.000    -.0644516   -.0595723
      exper2 |   .0038378   .0000952    40.32   0.000     .0036512    .0040244
      exper3 |   -.000095   2.85e-06   -33.36   0.000    -.0001006   -.0000894
      exper4 |   7.58e-07   2.78e-08    27.29   0.000     7.04e-07    8.13e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |   .0584547   .0077128     7.58   0.000     .0433363    .0735731
     dyear14 |   .1066648   .0074209    14.37   0.000     .0921185    .1212111
     dyear15 |   .1467271   .0071382    20.56   0.000      .132735    .1607192
     dyear16 |   .1264541   .0067207    18.82   0.000     .1132803    .1396279
     dyear17 |   .1201837   .0064134    18.74   0.000     .1076123    .1327552
     dyear18 |   .1040716   .0061492    16.92   0.000     .0920181    .1161251
     dyear19 |   .1184756   .0058194    20.36   0.000     .1070685    .1298827
     dyear20 |   .1161819   .0054842    21.18   0.000     .1054319    .1269319
     dyear21 |   .0286819   .0049604     5.78   0.000     .0189587    .0384051
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0110204   .0043415    -2.54   0.011    -.0195305   -.0025103
     dyear25 |  -.0146345   .0042078    -3.48   0.001    -.0228826   -.0063864
     dyear26 |    .000356    .004157     0.09   0.932    -.0077924    .0085044
     dyear27 |   .0022599   .0040021     0.56   0.572    -.0055849    .0101046
     dyear28 |   .0106523   .0039367     2.71   0.007     .0029357    .0183689
     dyear29 |   .0036509   .0038256     0.95   0.340     -.003848    .0111497
     dyear30 |   .0092969   .0037512     2.48   0.013     .0019438    .0166499
     dyear31 |   .0144427    .003665     3.94   0.000     .0072586    .0216267
     dyear32 |   .0052894   .0035552     1.49   0.137    -.0016793    .0122582
     dyear33 |   .0068324   .0034534     1.98   0.048     .0000632    .0136015
     dyear34 |   .0000747   .0033674     0.02   0.982    -.0065259    .0066754
     dyear35 |   .0028496   .0033461     0.85   0.394    -.0037093    .0094085
     dyear36 |   .0010848   .0033265     0.33   0.744    -.0054357    .0076053
     dyear37 |   .0030902    .003243     0.95   0.341    -.0032666     .009447
     dyear38 |  -.0011605   .0032659    -0.36   0.722    -.0075622    .0052413
     dyear39 |          0  (omitted)
       _cons |   .5859891   .0071241    82.25   0.000     .5720246    .5999535
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. areg papers inter_shock1 post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  30,  11172) =     131.92
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.4924
                                                  Adj R-squared   =     0.4715
                                                  Root MSE        =     0.8879

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
      papers |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
inter_shock1 |   .8890713   .1398056     6.36   0.000     .6150277    1.163115
    post1992 |  -.1443349   .0208549    -6.92   0.000    -.1852142   -.1034556
       exper |  -.0684664   .0038019   -18.01   0.000    -.0759188    -.061014
      exper2 |   .0042553   .0003136    13.57   0.000     .0036407      .00487
      exper3 |  -.0000978   9.97e-06    -9.80   0.000    -.0001173   -.0000782
      exper4 |   6.51e-07   1.02e-07     6.37   0.000     4.51e-07    8.51e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |   .0260165   .0196056     1.33   0.185    -.0124139    .0644469
     dyear14 |   .1135334   .0183961     6.17   0.000     .0774738    .1495931
     dyear15 |   .1818841   .0174903    10.40   0.000     .1476001    .2161682
     dyear16 |   .1759041   .0167961    10.47   0.000     .1429808    .2088274
     dyear17 |   .1557494   .0158383     9.83   0.000     .1247035    .1867953
     dyear18 |   .1126513   .0141488     7.96   0.000     .0849172    .1403853
     dyear19 |   .1516256   .0135049    11.23   0.000     .1251536    .1780977
     dyear20 |   .1680369   .0126262    13.31   0.000     .1432873    .1927865
     dyear21 |    .037756   .0108402     3.48   0.000     .0165073    .0590047
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0431934   .0095304    -4.53   0.000    -.0618747   -.0245122
     dyear25 |  -.0468166   .0094553    -4.95   0.000    -.0653507   -.0282824
     dyear26 |   .0242835   .0100652     2.41   0.016     .0045539     .044013
     dyear27 |   .0112048    .009851     1.14   0.255    -.0081049    .0305146
     dyear28 |   .0357066     .01001     3.57   0.000     .0160852     .055328
     dyear29 |   .0254931   .0100304     2.54   0.011     .0058318    .0451544
     dyear30 |   .0409837    .010174     4.03   0.000     .0210408    .0609266
     dyear31 |   .0502165   .0100803     4.98   0.000     .0304574    .0699756
     dyear32 |    .013934   .0097228     1.43   0.152    -.0051245    .0329924
     dyear33 |   .0270171   .0096005     2.81   0.005     .0081983    .0458358
     dyear34 |  -.0024951   .0092596    -0.27   0.788    -.0206455    .0156553
     dyear35 |  -.0142131   .0088844    -1.60   0.110    -.0316281    .0032018
     dyear36 |   -.015463   .0084975    -1.82   0.069    -.0321196    .0011935
     dyear37 |  -.0151976   .0085697    -1.77   0.076    -.0319957    .0016004
     dyear38 |  -.0192139    .008288    -2.32   0.020    -.0354598    -.002968
     dyear39 |          0  (omitted)
       _cons |   .8754071    .020093    43.57   0.000     .8360214    .9147929
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. areg papers  inter_pexp1  post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  30,  11172) =     127.30
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.4924
                                                  Adj R-squared   =     0.4715
                                                  Root MSE        =     0.8879

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
      papers |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
 inter_pexp1 |   .4254047    .066845     6.36   0.000     .2943768    .5564326
    post1992 |  -.0750004   .0131504    -5.70   0.000    -.1007774   -.0492234
       exper |   -.068729   .0038015   -18.08   0.000    -.0761805   -.0612774
      exper2 |   .0042889   .0003134    13.69   0.000     .0036747    .0049031
      exper3 |  -.0000988   9.97e-06    -9.91   0.000    -.0001183   -.0000792
      exper4 |   6.59e-07   1.02e-07     6.45   0.000     4.58e-07    8.59e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |   .0260482   .0196103     1.33   0.184    -.0123914    .0644877
     dyear14 |   .1137653   .0184041     6.18   0.000     .0776899    .1498406
     dyear15 |   .1820052   .0174905    10.41   0.000     .1477207    .2162896
     dyear16 |    .175779    .016789    10.47   0.000     .1428697    .2086883
     dyear17 |   .1556198    .015836     9.83   0.000     .1245783    .1866612
     dyear18 |   .1126543    .014151     7.96   0.000     .0849158    .1403928
     dyear19 |   .1516779   .0135063    11.23   0.000     .1252032    .1781526
     dyear20 |   .1680808   .0126252    13.31   0.000     .1433332    .1928284
     dyear21 |   .0377857   .0108403     3.49   0.000     .0165368    .0590346
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0432431   .0095297    -4.54   0.000    -.0619231   -.0245631
     dyear25 |   -.046921   .0094554    -4.96   0.000    -.0654552   -.0283868
     dyear26 |   .0241224    .010064     2.40   0.017     .0043952    .0438496
     dyear27 |   .0109881   .0098498     1.12   0.265    -.0083192    .0302954
     dyear28 |    .035438   .0100079     3.54   0.000     .0158207    .0550553
     dyear29 |   .0251789   .0100293     2.51   0.012     .0055197    .0448381
     dyear30 |   .0406325   .0101698     4.00   0.000      .020698    .0605671
     dyear31 |   .0498393   .0100778     4.95   0.000      .030085    .0695936
     dyear32 |   .0135683   .0097203     1.40   0.163    -.0054852    .0326218
     dyear33 |   .0266617   .0095995     2.78   0.005     .0078449    .0454784
     dyear34 |  -.0028285   .0092584    -0.31   0.760    -.0209766    .0153196
     dyear35 |  -.0145186   .0088837    -1.63   0.102    -.0319323     .002895
     dyear36 |  -.0157162   .0084978    -1.85   0.064    -.0323733    .0009409
     dyear37 |  -.0153934   .0085692    -1.80   0.072    -.0321906    .0014038
     dyear38 |  -.0193168   .0082878    -2.33   0.020    -.0355623   -.0030712
     dyear39 |          0  (omitted)
       _cons |   .8752199   .0201071    43.53   0.000     .8358064    .9146334
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. areg papers inter_paut1 post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  30,  11172) =     124.52
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.4921
                                                  Adj R-squared   =     0.4712
                                                  Root MSE        =     0.8882

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
      papers |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
 inter_paut1 |   .0567044   .0326954     1.73   0.083    -.0073843    .1207931
    post1992 |  -.0313814   .0111008    -2.83   0.005    -.0531409   -.0096219
       exper |   -.068134   .0038099   -17.88   0.000     -.075602   -.0606659
      exper2 |   .0042404   .0003141    13.50   0.000     .0036248     .004856
      exper3 |  -.0000975   9.99e-06    -9.76   0.000    -.0001171   -.0000779
      exper4 |   6.49e-07   1.02e-07     6.34   0.000     4.48e-07    8.49e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |   .0269365   .0196226     1.37   0.170    -.0115272    .0654002
     dyear14 |   .1147206   .0184142     6.23   0.000     .0786254    .1508158
     dyear15 |   .1828924   .0174999    10.45   0.000     .1485895    .2171952
     dyear16 |    .176724   .0167958    10.52   0.000     .1438012    .2096467
     dyear17 |   .1564711   .0158416     9.88   0.000     .1254188    .1875234
     dyear18 |   .1133176   .0141531     8.01   0.000     .0855749    .1410602
     dyear19 |   .1520501   .0135055    11.26   0.000      .125577    .1785232
     dyear20 |   .1682629   .0126265    13.33   0.000     .1435126    .1930132
     dyear21 |   .0378612   .0108399     3.49   0.000     .0166131    .0591092
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0432699   .0095295    -4.54   0.000    -.0619495   -.0245904
     dyear25 |  -.0469566   .0094555    -4.97   0.000    -.0654909   -.0284222
     dyear26 |   .0240923   .0100626     2.39   0.017     .0043679    .0438167
     dyear27 |    .010974   .0098494     1.11   0.265    -.0083325    .0302805
     dyear28 |    .035447   .0100076     3.54   0.000     .0158305    .0550636
     dyear29 |   .0252151   .0100286     2.51   0.012     .0055572     .044873
     dyear30 |    .040697   .0101695     4.00   0.000     .0207629    .0606311
     dyear31 |   .0499305   .0100755     4.96   0.000     .0301808    .0696802
     dyear32 |   .0136703   .0097196     1.41   0.160    -.0053819    .0327225
     dyear33 |   .0267738   .0095996     2.79   0.005     .0079569    .0455906
     dyear34 |  -.0027119   .0092593    -0.29   0.770    -.0208618     .015438
     dyear35 |  -.0143999   .0088838    -1.62   0.105    -.0318136    .0030139
     dyear36 |  -.0156125   .0084981    -1.84   0.066    -.0322703    .0010453
     dyear37 |  -.0153068   .0085698    -1.79   0.074    -.0321051    .0014915
     dyear38 |  -.0192718    .008288    -2.33   0.020    -.0355177   -.0030259
     dyear39 |          0  (omitted)
       _cons |   .8734053   .0201452    43.36   0.000     .8339171    .9128934
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. areg papers inter_shock1 inter_pexp inter_paut1 post1992 exper* dyear* , 
>         absorb(unique) robust cluster(unique);
note: dyear1 omitted because of collinearity
note: dyear2 omitted because of collinearity
note: dyear3 omitted because of collinearity
note: dyear4 omitted because of collinearity
note: dyear5 omitted because of collinearity
note: dyear6 omitted because of collinearity
note: dyear7 omitted because of collinearity
note: dyear8 omitted because of collinearity
note: dyear9 omitted because of collinearity
note: dyear10 omitted because of collinearity
note: dyear11 omitted because of collinearity
note: dyear12 omitted because of collinearity
note: dyear22 omitted because of collinearity
note: dyear39 omitted because of collinearity
note: dyear23 omitted because of collinearity

Linear regression, absorbing indicators           Number of obs   =     283169
                                                  F(  32,  11172) =     126.17
                                                  Prob > F        =     0.0000
                                                  R-squared       =     0.4927
                                                  Adj R-squared   =     0.4718
                                                  Root MSE        =     0.8877

                             (Std. Err. adjusted for 11173 clusters in unique)
------------------------------------------------------------------------------
             |               Robust
      papers |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
inter_shock1 |   .7860271   .1402237     5.61   0.000     .5111638     1.06089
 inter_pexp1 |   .3712327   .0692859     5.36   0.000       .23542    .5070453
 inter_paut1 |  -.0124827   .0332255    -0.38   0.707    -.0776106    .0526452
    post1992 |  -.1715208   .0213969    -8.02   0.000    -.2134624   -.1295792
       exper |  -.0688777   .0037885   -18.18   0.000    -.0763037   -.0614516
      exper2 |    .004291   .0003126    13.73   0.000     .0036782    .0049038
      exper3 |  -.0000987   9.95e-06    -9.92   0.000    -.0001182   -.0000792
      exper4 |   6.58e-07   1.02e-07     6.46   0.000     4.58e-07    8.58e-07
      dyear1 |          0  (omitted)
      dyear2 |          0  (omitted)
      dyear3 |          0  (omitted)
      dyear4 |          0  (omitted)
      dyear5 |          0  (omitted)
      dyear6 |          0  (omitted)
      dyear7 |          0  (omitted)
      dyear8 |          0  (omitted)
      dyear9 |          0  (omitted)
     dyear10 |          0  (omitted)
     dyear11 |          0  (omitted)
     dyear12 |          0  (omitted)
     dyear13 |   .0254768   .0195958     1.30   0.194    -.0129345    .0638881
     dyear14 |   .1129702   .0183869     6.14   0.000     .0769287    .1490117
     dyear15 |   .1813579   .0174839    10.37   0.000     .1470865    .2156293
     dyear16 |   .1752706   .0167842    10.44   0.000     .1423705    .2081706
     dyear17 |   .1551657     .01583     9.80   0.000     .1241361    .1861953
     dyear18 |   .1122411   .0141418     7.94   0.000     .0845208    .1399615
     dyear19 |   .1514265   .0135037    11.21   0.000     .1249569     .177896
     dyear20 |   .1679367   .0126239    13.30   0.000     .1431917    .1926816
     dyear21 |   .0377168   .0108399     3.48   0.001     .0164687     .058965
     dyear22 |          0  (omitted)
     dyear23 |          0  (omitted)
     dyear24 |  -.0431877   .0095302    -4.53   0.000    -.0618687   -.0245068
     dyear25 |  -.0468171    .009455    -4.95   0.000    -.0653507   -.0282836
     dyear26 |   .0242677   .0100646     2.41   0.016     .0045393    .0439961
     dyear27 |   .0111676   .0098509     1.13   0.257    -.0081418    .0304771
     dyear28 |   .0356444   .0100078     3.56   0.000     .0160272    .0552615
     dyear29 |   .0254047   .0100301     2.53   0.011     .0057439    .0450654
     dyear30 |   .0408701   .0101723     4.02   0.000     .0209307    .0608095
     dyear31 |   .0500811   .0100807     4.97   0.000     .0303211     .069841
     dyear32 |   .0137947   .0097223     1.42   0.156    -.0052628    .0328522
     dyear33 |   .0268731   .0096006     2.80   0.005     .0080542     .045692
     dyear34 |  -.0026374   .0092589    -0.28   0.776    -.0207863    .0155116
     dyear35 |    -.01435   .0088841    -1.62   0.106    -.0317645    .0030645
     dyear36 |  -.0155797   .0084975    -1.83   0.067    -.0322363    .0010768
     dyear37 |  -.0152916   .0085692    -1.78   0.074    -.0320887    .0015056
     dyear38 |   -.019262   .0082881    -2.32   0.020    -.0355082   -.0030159
     dyear39 |          0  (omitted)
       _cons |   .8764654   .0200668    43.68   0.000      .837131    .9157998
-------------+----------------------------------------------------------------
      unique |   absorbed                                   (11173 categories)

. log close;
      name:  <unnamed>
       log:  /volumes/ddisk/math/soviet/Table_2.log
  log type:  text
 closed on:  23 Mar 2014, 08:45:38
---------------------------------------------------------------------------------------------------
